PISTON KIT NAMURA YZ250 99-21 YZ250X 16-21 1.5MM OVERSIZE 67.85MM With a USB-A port

With a USB-A port

or additional brackets or clamps

The Crankcase Splitter Tool is a must for all motorcycle engine builders

When install the spark plug

Camshaft Hot Cam Inlet Stage 2

PISTON KIT NAMURA YZ250 99-21 YZ250X 16-21 1.5MM OVERSIZE 67.85MM With a USB-A portPiston Kit Namura YZ250 99 21 YZ250X 16 21 1. 5mm oversize 67. 85mm Features: Machined smooth piston crown to reflect combustion heat while reducing carbon buildup Hard anodized piston crown with a hardness of HRB 105 MOS2 coating to draw heat through piston walls and out the bottom Minimized piston expansion and contraction Pistons are more resistant to wear and scuffing, expand less with heat and are stronger Higher Performance piston without a